Structure and Data Processing of the Solar Stokes Spectral Telescope

The Solar Stokes Spectra Telescope at the Yunnan Observatory is a typical spectral vector magnetograph which canmeasure accurately the vector magnetic field of sunspots by using Stokes profiles, I 、Q 、U and V, of magnetic-sensitive lines.By using abundant message contained in the four Stokes profiles, it can determine the polarization state of radiation from the sunspots and measure accurately the vector magnetic field within sunspots.The structure of the telescope is described firstly.In the following, the process of the polarization spectra collected by the telescope is introduced in detail.